W&z express trading and investment .inc .usa was founded in los angeles,2009.we specialized in importation & exportation and investment.the company was set up by a chinese young man and a chinese merchant in usa. the headquarter is located in los angeles,and the branch office is established in shenyang,china. our company's aim has always been customer-market-oriented, good customer service is our principle of service. company's mission is to always pursue excellence, innovation continuous impr